UINavigationBar出现在UIStatusBar下

Question

UINavigationBar出现在iOS 6中的UIStatusBar下（它在iOS 7中正常运行），我在使用Xocde 5的故事板，

： 这是我的代码段，

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    [UIApplication sharedApplication].statusBarHidden = NO;

    if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7) //iOS 6
    {
        [[UITabBar appearance] setBackgroundImage:[UIImage imageNamed:@"TabImg.png"]];
        [[UINavigationBar appearance] setTintColor:[UIColor colorWithRed:.7 green:.2 blue:.1 alpha:1.0]];
        [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackOpaque];
    }

    return YES;
}

HomePage上的代码，

- (void)viewDidLoad
{
    [super viewDidLoad];

        CRViewController *Obj=[[CRViewController alloc] init];
        [self.tabBarController presentViewController:Obj animated:YES completion:nil];

}

当我在didFinishLaunchingWithOptions方法viewDidLoad被解雇后运行我的应用时，这会调用CRViewController类。

CRViewController上的代码，

- (void)viewDidLoad
{
    [super viewDidLoad];

    [self.navigationController setNavigationBarHidden:YES];
    self.tabBarController.tabBar.hidden = YES;
    [UIApplication sharedApplication].statusBarHidden = YES;

     ...
     ...
     ...

}



- (IBAction)SkipClick:(id)sender {
    [self dismissViewControllerAnimated:YES completion:nil];
}

-(void)viewDidDisappear:(BOOL)animated{
    [self.navigationController setNavigationBarHidden:NO];
    self.tabBarController.tabBar.hidden = NO;
    [UIApplication sharedApplication].statusBarHidden = NO;
}

我在哪里做错了？

提前致谢。

Answer 1

Navigation is showing in ios 7 than you have check this it will work


NSString *version = [[UIDevice currentDevice] systemVersion];
int ver = [version intValue];
if (ver > 7)
{
}
else
{
    self.edgesForExtendedLayout = UIRectEdgeNone;

}

self.tabBarController.tabBar.hidden = YES;不在ios 7中工作它显示黑屏。比你可以隐藏它

- （void）hideTabBar

{

UITabBar * tabBar = self.tabBarController.tabBar;

UIView * parent = tabBar.superview; // UILayoutContainerView

UIView * content = [parent.subviews objectAtIndex：0]; // UITransitionView

UIView * window = parent.superview;

[UIView animateWithDuration：0.5

动画：^ {

CGRect tabFrame = tabBar.frame;

tabFrame.origin.y = CGRectGetMaxY（window.bounds）;

tabBar.frame = tabFrame;                      content.frame = window.bounds;

}];

}